{"id":167711,"date":"2026-04-06T23:11:55","date_gmt":"2026-04-06T21:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9"},"modified":"2026-04-06T23:11:55","modified_gmt":"2026-04-06T21:11:56","slug":"v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/v-yadro-linux-predlozheno-vklyuchit-raspredelyonnoe-replicziruemoe-blochnoe-ustrojstvo-drbd-9","title":{"rendered":"I k\u00e4rnan av Linux f\u00f6resl\u00e5s att inkludera det distribuerade replikerade blocklagringssystemet DRBD 9","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>F\u00f6r Linux-k\u00e4rnan f\u00f6resl\u00e5s en upps\u00e4ttning patchar med implementeringen av det distribuerade replikerade blocklagringssystemet DRBD 9, vilket m\u00f6jligg\u00f6r skapandet av en liknande RAID-1-array, bildad av n\u00e4tverksreplikerade lagringsenheter som \u00e4r anslutna till olika system. Drivrutinen avser f\u00f6rst att testas i linux-next-grenen och g\u00f6ras redo f\u00f6r integration i Linux-k\u00e4rnan 7.2.     <\/p>\n<p>Den gamla versionen av DRBD finns i k\u00e4rnan sedan version 2.6.33, som sl\u00e4pptes f\u00f6r 16 \u00e5r sedan. Den kod som finns i k\u00e4rnan \u00e4r baserad p\u00e5 DRBD 8-grenen, som skiljer sig avsev\u00e4rt fr\u00e5n DRBD 9-grenen som sl\u00e4pptes 2015 och inte \u00e4r kompatibel p\u00e5 protokollniv\u00e5. Det har blivit s\u00e5 att DRBD 9-grenen har utvecklats som en separat extern modul, osynkroniserad med modulen fr\u00e5n den huvudsakliga k\u00e4rnsammans\u00e4ttningen. Den implementering av DRBD som finns i k\u00e4rnan har f\u00f6ljts separat och ligger 10-15 \u00e5r efter den aktuella koden f\u00f6r DRBD. De f\u00f6reslagna patcharna har skapats f\u00f6r att \u00e5tg\u00e4rda den uppkomna klyftan.    <\/p>\n<p>DRBD m\u00f6jligg\u00f6r att sammanf\u00f6ra klustrets noder till en enhetlig felfri lagring. F\u00f6r applikationer och system ser detta lagringsutrymme ut som en enhetlig blockenhet f\u00f6r alla system. Vid anv\u00e4ndning av DRBD skickas alla operationer med den lokala disken till andra noder och synkroniseras med diskarna p\u00e5 andra maskiner. Om en nod g\u00e5r ner kommer lagringen automatiskt att forts\u00e4tta fungera tack vare de kvarvarande noderna. N\u00e4r den felande nodens tillg\u00e4nglighet \u00e5terst\u00e4lls kommer dess tillst\u00e5nd automatiskt att uppdateras till det aktuella l\u00e4get.     <\/p>\n<p>Klustret som bildar lagringsutrymmet kan best\u00e5 av upp till 32 noder, placerade b\u00e5de i det lokala n\u00e4tverket och p\u00e5 geografiskt spridda platser. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sv\/kompaniya\/data-centers\/\" title=\"datacenter\" data-wpil-keyword-link=\"linked\">datacenter<\/a>. Synchronisering i s\u00e5dana distribuerade lagringssystem utf\u00f6rs i form av ett mesh-n\u00e4tverk \u2014 data sprids genom kedjan fr\u00e5n nod till nod. Replikering av noder kan ske antingen i synkront l\u00e4ge eller asynkront. Till exempel kan lokalt placerade noder anv\u00e4nda synkron replikering, medan noder p\u00e5 avl\u00e4gsna platser kan anv\u00e4nda asynkron replikering med ytterligare komprimering och kryptering av trafiken.    <\/p>\n<p>DRBD 9-grenen skiljer sig genom abstrahering av transportniv\u00e5n, vilket m\u00f6jligg\u00f6r kommunikationskanaler inte bara \u00f6ver TCP\/IP utan ocks\u00e5 med anv\u00e4ndning av RDMA\/Infiniband. J\u00e4mf\u00f6rt med att arbeta \u00f6ver ett traditionellt IP-n\u00e4tverk har integrationen av direkt \u00e5tkomst till minnet p\u00e5 en annan dator via RDMA (Remote Direct Memory Access) dubblerat prestandan f\u00f6r replikering samtidigt som CPU-belastningen har minskat med 50%. Den maximala storleken p\u00e5 det synkroniserade lagringsutrymmet har \u00f6kat till 32 noder. I DRBD 9 har \u00e4ven logiken f\u00f6r noderesynkronisering \u00e4ndrats, mekanismen f\u00f6r l\u00e5sning har omarbetats, st\u00f6d f\u00f6r n\u00e4tverksnamnrymder (network namespace) har lagts till, automatisk statusinst\u00e4llning f\u00f6r noder beroende p\u00e5 aktivitet har s\u00e4kerst\u00e4llts, samt st\u00f6d f\u00f6r tv\u00e5fasiga \u00e5taganden och distribution av uppdateringar i icke-blockerande l\u00e4ge har lagts till.    <img decoding=\"async\" alt=\"I k\u00e4rnan av Linux f\u00f6resl\u00e5s att inkludera det distribuerade replikerade blocklagringssystemet DRBD 9\" src=\"\/wp-content\/uploads\/2026\/04\/b1358709870d1333355954b71c5dd400.png\" style=\"display:block;margin: 0 auto\" \/><br \/>\n<br \/>K\u00e4lla: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65158\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0435\u043f\u043b\u0438\u0446\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0431\u043b\u043e\u0447\u043d\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 DRBD 9, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u043f\u043e\u0434\u043e\u0431\u0438\u0435 \u043c\u0430\u0441\u0441\u0438\u0432\u0430 RAID-1, \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0438\u0437 \u0437\u0435\u0440\u043a\u0430\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u043f\u043e \u0441\u0435\u0442\u0438 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0451\u043d\u043d\u044b\u0445 \u043a \u0440\u0430\u0437\u043d\u044b\u043c \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u043c. \u0414\u0440\u0430\u0439\u0432\u0435\u0440 \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u044b \u0432\u043d\u0430\u0447\u0430\u043b\u0435 \u043f\u0440\u043e\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432 \u0432\u0435\u0442\u043a\u0435 linux-next \u0438 \u0434\u043e\u0432\u0435\u0441\u0442\u0438 \u0434\u043e \u0433\u043e\u0442\u043e\u0432\u043d\u043e\u0441\u0442\u0438 \u043a \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u0438 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux 7.2. \u0421\u0442\u0430\u0440\u044b\u0439 \u0432\u0430\u0440\u0438\u0430\u043d\u0442 DRBD \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u044f\u0434\u0440\u0435 \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":167712,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-167711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0435\u043f\u043b\u0438\u0446\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e 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\u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412 \u044f\u0434\u0440\u043e Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043e \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0435 \u0440\u0435\u043f\u043b\u0438\u0446\u0438\u0440\u0443\u0435\u043c\u043e\u0435 \u0431\u043b\u043e\u0447\u043d\u043e\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e DRBD 9 | ProHoster","og:description":"\u0414\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0435\u043f\u043b\u0438\u0446\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0431\u043b\u043e\u0447\u043d\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 DRBD 9, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u043f\u043e\u0434\u043e\u0431\u0438\u0435 \u043c\u0430\u0441\u0441\u0438\u0432\u0430 RAID-1, \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0438\u0437 \u0437\u0435\u0440\u043a\u0430\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u043f\u043e \u0441\u0435\u0442\u0438 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